Product Designer (UX), HCI

About this role

ABOUT ACTAI

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting.

Our first application is an agent-first mobile communication app. We believe building applications that users use daily for communication, coordination and collaboration needs will help integrate AI into their lives. The net effect is to eliminate misinformation, achieve low coordination costs, enable high quality tasks and collaboration at scale with minimal or little prompting.

ROLE

Design how people use AI in real product workflows. This role focuses on building HCI interfaces where users can understand, guide, correct, and stay in control of AI systems that reason and act across multiple steps.

Current UX patterns are not enough for proactive AI products. You will help define new interaction models for how users work with AI, review progress, recover from mistakes, and build trust in the system.

WHAT YOU'LL BE DOING

• Design end-to-end user experiences for AI product surfaces, from concept to shipped product.

• Create interaction patterns for human-AI workflows, including prompting, review, confirmation, correction, handoff, and recovery.

• Design interfaces that help users understand what the AI is doing, what it knows, what it is unsure about, and what will happen next.

• Turn complex, multi-step AI capabilities into flows that are clear, controllable, and usable in everyday contexts.

• Work closely with product, engineering, and ML teams to define problems, test ideas, and ship quickly.

• Produce wireframes, flows, prototypes, and high-fidelity designs for web and mobile.